Re: [PATCH] net-proc: expose the tos values in /proc/net/[tcp|udp]

From: MuraliRaja Muniraju
Date: Tue Oct 04 2011 - 13:38:13 EST

I shall make the changes by exposing the tos values via the
netlink as suggested. I had a doubt is I have to modify the
inet_diag_sockid or export it via a new option. I am considering
that adding into inet_diag_sockid is better because the latter is a
bit of a over kill for a single value to be exposed and it also seems
to be logical fit.
Can you let me know your thoughts on this.


On Thu, Sep 29, 2011 at 12:32 PM, David Miller <davem@xxxxxxxxxxxxx> wrote:
> From: Muraliraja Muniraju <muralira@xxxxxxxxxx>
> Date: Thu, 29 Sep 2011 12:22:42 -0700
>> From: Murali Raja <muralira@xxxxxxxxxx>
>> This patch exports the tos values from the inet_sock struct
>> for tcp and udp into the /proc/net/tcp or /proc/net/udp respectively.
>> This will not pickup per packet tos changes but it will address most
>> of the cases. This is mainly useful as it would decrease reliance on
>> tcpdump and also people without root access will be able to read
>> the values.
>> Signed-off-by: Murali Raja <muralira@xxxxxxxxxx>
> You cannot change the layout of these files, they are parsed by userland
> problems and therefore have a fixed API.
> Netlink based socket dumping provides a proper, backwards compatible,
> way to extend what is reported, so please consider adding your changes
> there.

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